Microchip USB2517I-JZX: A Deep Dive into the 7-Port Hi-Speed Hub Controller
In the realm of modern connectivity, the USB hub remains an indispensable component for expanding the limited port offerings of computers and embedded systems. The Microchip USB2517I-JZX stands out as a highly integrated, industrial-grade solution, engineered to deliver robust and flexible USB 2.0 connectivity. This 7-port hub controller is designed to meet the demanding requirements of a wide array of applications, from professional workstations and industrial machinery to sophisticated point-of-sale systems.
At its core, the USB2517I-JZX is a Hi-Speed USB 2.0 hub controller that supports data transfer rates up to 480 Mbps. Its seven downstream ports provide significant expansion capabilities, allowing multiple peripherals—such as keyboards, mice, printers, external storage, and more—to operate simultaneously from a single upstream port. A key feature of this hub is its support for multi-transaction translator (Multi-TT) architecture. This design significantly enhances performance when multiple full-speed (12 Mbps) or low-speed (1.5 Mbps) devices are connected concurrently, reducing latency and improving overall data throughput by handling transactions in parallel.
The device exemplifies design flexibility and ease of integration. It is available in a compact 64-pin QFN package, making it suitable for space-constrained PCB layouts. Furthermore, it offers multiple configuration options. Manufacturers can leverage strapping pins for basic setup or utilize an external serial EEPROM for custom vendor IDs, product IDs, and port configuration, enabling a tailored solution without the need for custom firmware development. This plug-and-play functionality simplifies the design-in process considerably.
Beyond its core functionality, the USB2517I-JZX incorporates advanced features that bolster system reliability and power management. It includes integrated downstream port power management with individual or ganged power control and comprehensive over-current detection for each port. This protects the hub and connected devices from potential electrical damage. The controller also supports battery charging applications, recognizing charging devices attached to its downstream ports to enable faster charging cycles.
In summary, the Microchip USB2517I-JZX is a powerful and versatile hub controller that addresses the complex connectivity needs of modern electronic designs. Its combination of high port count, high-speed performance, and robust feature set makes it an ideal choice for developers seeking a reliable and efficient USB expansion solution.
ICGOOFIND: The Microchip USB2517I-JZX is a premier choice for engineers requiring a high-performance, 7-port USB 2.0 hub. Its Multi-TT architecture ensures superior performance with multiple low/full-speed devices, while its flexible configuration via EEPROM and robust integrated power management make it exceptionally reliable and easy to integrate into industrial and commercial applications.
Keywords: Hi-Speed USB 2.0 Hub, Multi-Transaction Translator, Downstream Port Power Management, Battery Charging Support, EEPROM Programmability.
